14 replies to this topic

[mini-geek]

I'm building up my 1380 it's a different block but the original gear box and transfer case that I used with the last engine, this all worked fine with no problems, but I have been building it back up and when I checked my idler end float I get 10 thou.

so I have took it apart again, and my thrust washers are 133 and 136 so they aren't the thinnest of shims so why such a big end float? is it something more serious or should I just buy some thicker thrust washers and not be too worried about whay it did have such a large tolerance?

any advice please...... I need to have this engine in a running in 4 weeks

[MRA]

0.136" is not the thickest 0.139" is 0.003" thicker and a 0.134" thrust washer means that you have 0.006" clearance which is about central ie 0.004 to 0.007" "gap"

[mini-geek]

yes I know they are not the thickest they do, I was looking at getting this http://minispares.co...amp;title=IDLER GEAR SHIM .138/.139...

I would use that shim and and the 136 that I have, so that would be a 136 and a 138 by my calculations that would reduce end float by 5 thou

[Guess-Works.com]

Question is, how did you check the end float ?

[mini-geek]

using a DTI and a lot of patience to make sure it wasnt giving a false reading by slipping off the teeth.

[Guess-Works.com]

That just tells me how you got the number, does not tell me how you measured the endfloat..

[mini-geek]

by building up the gearbox and casing with a gasket and moving the gear side to side

[Guess-Works.com]

So gearbox, gasket and transfer case, no engine block, transfer to gearbox bolts torqued up to 18lbft ?

so you could put a feeler gauge between the idler gear shim and the gearbox case if you wanted to ?

[mini-geek]

no I had the gear box on the engine as I had already built that up then rememberd the idler end float

the bolt's where all tourqued up and I have also removed it and refitted it with a diffrent gasket in case that was the problem, but with no luck.

I know it's not the preferd way of checking it but I have esured my mesurments were spot on.

[MRA]

I also am a little confused how did you get the feeler gauge in to measure the clearance ? did you use the hole that the primary gear fits in to ?

[GraemeC]

He said he used a DTI, not a feeler gauge.

[mini-geek]

so have I checked this correctly or not?

[minimans]

I would recheck the end float again. I don't see how you could get the DTI on the Idler gear correctly through the primary gear hole?

[GraemeC]

7 years on I think he might have found other things to worry about by now!

[minimans]

It took me a while to think about it....................................Must remember to check dates in future.........................